Smc

//version=5
strategy("SMC Trading Strategy", overlay=true, default_qty_type=strategy.percent_of_equity, default_qty_value=10)

// 定义 Swing High 和 Swing Low
swingHigh = ta.highest(high, 5)
swingLow = ta.lowest(low, 5)

// 识别 BOS（结构突破）
bosUp = ta.crossover(high, ta.highest(high, 20))
bosDown = ta.crossunder(low, ta.lowest(low, 20))

// 识别 CHoCH（结构变化）
chochUp = ta.crossover(high, ta.lowest(low, 20))
chochDown = ta.crossunder(low, ta.highest(high, 20))

// 订单块（Order Block, OB）检测
bullishOB = ta.valuewhen(bosUp, low[1], 0) // 看涨订单块
bearishOB = ta.valuewhen(bosDown, high[1], 0) // 看跌订单块

// FVG（Fair Value Gap）
fvgUp = high[2] < low[0]
fvgDown = low[2] > high[0]

// 交易规则
longEntry = bosUp and fvgUp and close > bullishOB
shortEntry = bosDown and fvgDown and close < bearishOB

// 进场
if longEntry
strategy.entry("Buy", strategy.long)
strategy.exit("Take Profit", from_entry="Buy", limit=close + (close - bullishOB) * 2, stop=low)

if shortEntry
strategy.entry("Sell", strategy.short)
strategy.exit("Take Profit", from_entry="Sell", limit=close - (bearishOB - close) * 2, stop=high)

// 画出 OB 区域
plot(bullishOB, color=color.green, style=plot.style_stepline, title="Bullish OB")
plot(bearishOB, color=color.red, style=plot.style_stepline, title="Bearish OB")